EP0408736B1 - Flachkabelverbinder hoher dichte mit kontakten mit zweifachem übergang - Google Patents

Flachkabelverbinder hoher dichte mit kontakten mit zweifachem übergang Download PDF

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Publication number
EP0408736B1
EP0408736B1 EP90903289A EP90903289A EP0408736B1 EP 0408736 B1 EP0408736 B1 EP 0408736B1 EP 90903289 A EP90903289 A EP 90903289A EP 90903289 A EP90903289 A EP 90903289A EP 0408736 B1 EP0408736 B1 EP 0408736B1
Authority
EP
European Patent Office
Prior art keywords
section
row
terminal
insulation displacement
ribbon cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90903289A
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English (en)
French (fr)
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EP0408736A1 (de
Inventor
Wayne Samuel Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whitaker LLC
Original Assignee
Whitaker LLC
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Filing date
Publication date
Application filed by Whitaker LLC filed Critical Whitaker LLC
Publication of EP0408736A1 publication Critical patent/EP0408736A1/de
Application granted granted Critical
Publication of EP0408736B1 publication Critical patent/EP0408736B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
    • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
    • H01R12/675—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals with contacts having at least a slotted plate for penetration of cable insulation, e.g. insulation displacement contacts for round conductor flat cables

Definitions

  • This invention relates to electrical connectors and contacts therefor and, in particular, to a high density ribbon cable connector and a dual transition contact therefor.
  • the printed circuit board area allocated for connectors is also decreased. As the smaller area is utilized, more contacts are placed in smaller and smaller connectors.
  • the complementary connectors typically a ribbon cable connector, must also contain a higher density of contacts. As the density of contacts in ribbon cable connectors increases, the spacing between adjacent conductors in ribbon cable decreases correspondingly. As the spacing between conductors in the ribbon cable decreases, the likelihood of adjacent contacts making electrical engagement with each other increases with the result that contacts must be designed to assure there is dielectric housing material separating the contacts.
  • the present invention consists in a connector as defined in claim 1.
  • EP-A-0 212 356 discloses a connector according to the preamble of claim 1.
  • the high density ribbon cable connector has an insulative housing having a plurality of passages extending therethrough. Each of the passages has an electrical terminal secured therein.
  • Each terminal has a mating section, an intermediate section and an insulation displacement section. A first transition section is disposed between the mating section and the intermediate section; a second transition section is disposed between the intermediate section and the insulation displacement section.
  • the intermediate section provides forwardly facing stop shoulders for engagement with stop shoulders in the insulative housing to position the terminal in the passage in which it is inserted.
  • Each terminal is pushed into a passage in the housing by applying an insertion force on rearwardly facing shoulders on the intermediate section.
  • the first transition section provides that the forwardly facing stop shoulders on the intermediate section are not in the same plane as the mating section of the terminal.
  • a second transition section is disposed between the intermediate section and the insulation displacement section. The second transition section provides that the insulation displacement section is not in the same plane as rearwardly facing insertion force shoulders also on the intermediate section.
  • a latching termination cover is used to press the ribbon cable onto the insulation displacement sections of the terminals, thereby terminating the conductors of the ribbon cable to respective terminals.
  • a high density ribbon cable connector 20 in accordance with an embodiment of the invention is shown in a perspective view in Figure 1.
  • Connector 20 includes housing 22 and termination cover 24, both molded of a dielectric material.
  • Housing 22 has forward mating face 26, opposed conductor receiving rear face 28 and contact receiving passages 30 extending therebetween, with contacts 32 secured therein.
  • contacts 32 are positioned in housing 22 with the mating portion 34, in the form of tab 36, in two rows spaced with centerlines 2.5 mm (0.100 inch) apart, with adjacent tabs in each row spaced with centerlines 1.27 mm (0.050 inch) apart, however these contact spacings are not mandatory.
  • Contacts 32 are stamped and formed from rolled strip stock, typically phosphorus bronze. A portion of the width of the rolled stock is pre-milled to provide a thinner region along an edge of the strip stock.
  • Each contact 32 has a mating portion 34 at one end, an insulation displacement plate 38 at the other end, and an intermediate portion 40 therebetween. The mating portion 34 of each contact 32 is stamped in the thicker portion of the stock; the insulation displacement plate 38 is stamped in the thinner region of the stock.
  • Mating portion 34 comprises tab 36 having barbs 42 on side edges 44 thereof, and defining axis 46 therethrough.
  • barbs 42 plow through passage sidewalls 48 (see Figure 6) with plastic flowing around the barbs to provide an interference fit that secures tab 36 and hence contact 32 in passage 30.
  • the intermediate portion 40 of contact 32 comprises a portion of the carrier strip 50.
  • laterally facing sheared edge surfaces 52 are formed.
  • the section 54 of the carrier strip between adjacent edge surfaces 52 of adjacent contacts 32 may have feed holes and is discarded.
  • the section of the carrier strip that remains on each contact 32 comprises intermediate portion 40 and extends laterally, typically beyond tab 36, providing forward facing stop shoulders 58.
  • the tab 36 is off-set from the plane of the stock, which is the plane of carrier strip 50 and section 54, in a first direction, resulting in a first transition region 60 providing a first off-set.
  • Insulation displacement plate 38 is thinner to facilitate insulation displacement termination of ribbon cable 94 by reducing the force necessary to effect a termination.
  • Insulation displacement plate 38 extends from section 56 on extension 62.
  • Section 56 extends laterally, typically beyond extension 62, providing rearwardly facing stop shoulders 65 (see Figure 5).
  • the insertion force is applied to shoulders 65 and hence the thicker portion of the contact to push contacts into respective passages 30.
  • the insertion force overcomes the resistance to insertion incurred by barbs 42 providing an interference fit with walls 48.
  • First transition region 60 provides that the forwardly facing stop shoulders 58 on section 56 are not in the same plane as the mating portion 34 of contact 32.
  • the insulation displacement plate 38 is off-set at second transition region 72 from section 56 in the same direction that section 56 is off-set from tab 36, with insulation displacement plate 38 substantially parallel to section 56.
  • Second transition region 72 provides that the insulation displacement plate 38 is not in the same plane as rearwardly facing shoulders 65.
  • Second transition region 72 provides an insulation displacement plate 38 that is out of the plane of section 56 such that an insertion tool can engage rearwardly facing shoulders 65 to apply an insertion force to push contacts 32 into passages 30 of housing 22.
  • the insertion tool would bridge extension 62 and ramped surface 70. Without the second transition region 72 it would be more difficult to apply an insertion force to shoulders 65.
  • the insulation displacement plates of terminals 32c, 32d, 32e and 32f terminate four adjacent conductors in ribbon cable 94. Adjacent conductors in the ribbon cable, thus being terminated, are conductive with the mating portion 34 of adjacent contacts across centerline 96. Thus, if the conductors of the ribbon cable alternately carry a signal, ground, signal, ground, etc., all ground conductors are terminated to contacts such that all mating portions 34 in a row 84 carry a ground while all mating portions 34 in a row 86 carry signals.
  • a line segment interconnecting the axes of contacts 32e and 32f is normal to centerline 96.
  • Slot 78 is offset one-half of the centerline spacing to the right of axis 46 of contact 32.
  • Slot 78 is offset one-half of the centerline spacing to the left of axis 46 of contact 32e. It can thus be seen that slots 78 of contacts 32c, 32d, 32e and 32f are spaced to correspond to the centerline spacing of the conductors of a ribbon cable adapted to be terminated thereon.
  • the passage 30 for either an inside or an outside contact is virtually identical, as seen in Figures 7 and 8. The differences are that for an outside contact, the passage offsets outwardly toward a side wall of housing 22 whereas for an inside contact, the passage offsets inwardly toward centerline 96. Furthermore, ribs 104 are on wall 106 for all contacts and allowance is made for base 80 to be offset such that slot 78 is offset laterally from axis 46 in opposite directions for inside and outside contacts, as best seen in Figures 7 and 8.
  • first transition region 60 and second transition region 72 assure that all features of intermediate portion 40 and insulation displacement plate 38 of adjacent inside and outside contacts remain at least the minimum distance 154 apart.
  • a projection of a feature of adjacent contacts overlies each other, they are at least the minimum distance 154 apart, for example, the corners 156 and 158 of intermediate portion 40 of contacts 32 as best seen in Figure 6.
  • the spacing between the closest points of inside contacts 32b across centerline 96, as best seen in Figure 5, is also maintained at least minimum distance 154 apart.
  • Figure 6 shows a cutaway view of a part of housing 22 showing detailed features of passage 30.
  • Tab 36 upon insertion into a respective passage 30, is guided into the narrower forward portion 98 by cooperating tapered end 100 and tapered lead-in surfaces 102 which laterally position tab 36 for entry into forward portion 98.
  • Tab 104 protruding inward along the forward portion of passage wall 106 forces tab 36 against the opposite passage wall 108 to minimize the position tolerance of tabs 36.
  • First transition region 60 provides the transition from narrow forward portion 98 to recess 110. Tapered lead-in surfaces 112 facilitate first transition region 60 entering recess 110 and permit a radius on contact 32 between tab 36 and section 56.
  • shoulders 58 provide a datum on contacts 32 relative to which all contact structure is referenced.
  • shoulders 64 provide a datum on housing 22 relative to which structure along passage 32 is referenced.
  • Section 56 engages a wall 114. Lateral edge surfaces 52 extend between the clear walls 116,118. Walls 116 and 118 extend rearwardly to tapered lead-ins 120, with wall 116 offset at tapered lead-in 122.
  • Second transition region 72 provides a transition from section 56 engaging wall 114 to base region 80 engaging a wall 123. Second transition region 72 is received in recess 124. Tapered lead-in 126 guides second transition region 72 into recess 124 during insertion of a contact 32 into passage 30. With a contact 32 positioned in passage 30, there is a small amount of clearance between shoulders 128 and base 80 as at 130. Shoulders 128 support base 80 during termination of cable 94.
  • Housing end walls 132, 134 have terminating cover alignment ribs 136 extending outwardly therefrom.
  • Latch means 138 are provided on ribs 136 to cooperate with complementary latch means on terminating cover 24 to secure the terminating cover to housing 22.
  • Terminating cover 24 is elongate, having latch arms 140 at opposite ends thereof, with an inner surface 142 extending therebetween for engaging ribbon cable 94.
  • Latch arms 140 have a channel 144 complementary to ribs 136 which cooperates with ribs 136 during movement of termination cover 24 from a pretermination position to a termination position to guide cover 24 parallel to slots 78.
  • Latch arms 140 also have complementary latch means 146 adapted to engage latch means 138 to retain cover 24 on housing 22.
  • Figures 9 and 10 show termination cover 24 on a pretermination position wherein latch means 138 in complementary latch means 146 maintain terminating cover 24 such that inner surface 142 is spaced from insulation piercing points 74 of contacts 32 to permit insertion of a ribbon cable 94 therebetween.
  • terminating cover 24 may be placed in tool 150, cable 94 passed between plates 38 and inner surface 142 with conductors 92 positioned to correspond to slots 78, thence housing 22 pressed toward cover 24 as indicated by arrow 152.
  • Conductors 92 are terminated on respective plates 38 as insulation displacement plates 38 pass into recesses 148 and inner surface 142. This provides some plastic adjacent to each recess 148 to support the insulation surrounding a conductor being terminated in a plate passing into the recess.
  • Figures 11 and 12 show terminating cover 24 having been moved from a pretermination position to a termination position with latch means 138 in complementary latch means 146 securing cover 24 to housing 22 in the terminated position.
  • first and second transitions have been described herein above in the present embodiment as providing that section 56 is displaced out of the plane of mating portion 34 and plate 38 is displaced out of the plane of both section 56 and mating portion 34, it is contemplated that variations may be made.
  • One possible variation is to provide a mating portion 34 that is substantially coplanar with a thinner insulation displacement plate 38 with intermediate portion 40 rotated 90 degrees such that the first and second transitions are a twist.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (9)

  1. Verbinder (20) zum Anschließen an ein Flachkabel (94), das dicht angeordnete, gleichmäßig beabstandete Leiter (92) umgeben von einer Isolierung hat, wobei der Verbinder (20) ein isolierendes Gehäuse (22) hat, das eine Kabelaufnahmefläche (28), eine Fügefläche (26) und eine Reihe von sich dazwischen erstreckenden Anschlußaufnahmedurchgängen (30) bildet, wobei in jedem der Durchgänge (30) ein elektrischer Anschluß (32) befestigt ist und wobei Wände, die auf benachbarte Anschlüsse in der Reihe der Anschlüsse zu weisen, einen vorbestimmten Abstand (154) dazwischen definieren, wobei jeder Anschluß (32) einen Fügeabschnitt (34), der eine Achse (46) definiert, und einen Isolationsverlagerungsabschnitt (38) hat, wobei sich wenigstens ein Teil jedes Isolationsverlagerungsabschnitts über die Kabelaufnahmefläche (28) zum Anschließen des Flachkabels (94) daran hinauserstreckt, wobei der Anschluß einen Zwischenabschnitt (40), einen ersten Übergangsabschnitt (60) und einen zweiten Übergangsabschnitt (72) hat, wobei der erste Übergangsabschnitt (60) zwischen dem Fügeabschnitt (34) und dem Zwischenabschnitt (40) liegt, wobei der erste Übergangsabschnitt (60) den Fügeabschnitt (34) gegenüber der Ebene des Zwischenabschnitts (40) in einer ersten Richtung senkrecht zu der Reihe der Anschlußaufnahmedurchgänge (30) verlagert, wobei der zweite Übergangsabschnitt (72) zwischen dem Zwischenabschnitt (40) und dem Isolationsverlagerungsabschnitt (38) liegt, wobei der zweite Übergangsabschnitt (72) den Isolationsverlagerungsabschnitt (38) gegenüber dem Zwischenabschnitt (40) in einer zweiten Richtung verlagert, die der ersten Richtung entgegengesetzt ist, so daß der Isolationsverlagerungsabschnitt (38) gegenüber der Achse (46) des Fügeabschnitts (34) versetzt ist, dadurch gekennzeichnet, daß bei alternierenden Anschlüssen in der Reihe deren Isolationsverlagerungsabschnitte (38) gegenüber der Achse der Fügeabschnitte (34) in entgegengesetzten Richtungen senkrecht zu der Reihe versetzt sind, und daß die Zwischenabschnitte (40) benachbarter Anschlüsse (32) in der Reihe teilweise einander überlagern und wenigstens um den vorbestimmten Abstand (154) voneinander beabstandet sind.
  2. Verbinder (20) zum Anschließen an ein Flachkabel nach Anspruch 1, dadurch gekennzeichnet, daß der Isolationsverlagerungsabschnitt (38) jedes Anschlusses (32) einen Isolationsverlagerungsschlitz (78) aufweist, wobei diese Schlitze (78) gegenüber der Achse (46) des Fügeabschnitts (34) eines entsprechenden Anschlusses (32) parallel zu der Reihe versetzt sind.
  3. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 2, dadurch gekennzeichnet, daß der Isolationsverlagerungsschlitz (78) der Anschlüsse (32) in der Reihe gegenüber der Achse (46) des Fügeabschnitts (34) der Anschlüsse parallel zu der Reihe in einer ersten seitlichen Richtung versetzt ist.
  4. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 2, dadurch gekennzeichnet, daß die Versetzung des Isolationsverlagerungsschlitzes (78) gegenüber der Achse (46) des Fügeabschnitts (34) eines Anschlusses (32) parallel zu der Reihe eine Hälfte des Abstandes zwischen den Achsen (46) benachbarter Anschlüsse (32) in der Reihe beträgt.
  5. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 2 oder 3, gekennzeichnet durch eine zweite Reihe von Anschlußaufnahmedurchgängen (30) im wesentlichen parallel zu der ersten Reihe, wobei in der zweiten Reihe von Durchgängen gleiche Anschlüsse (32) befestigt sind, wobei die Isolationsverlagerungsabschnitte (38) von Anschlüssen (32) in jeder Reihe, die gegenüber der Achse (46) des Fügeabschnitts (34) auf die andere Reihe von Kontakten zu versetzt sind, teilweise einander überlagern und wenigstens um den vorbestimmten Abstand (154) voneinander beabstandet sind.
  6. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 5, dadurch gekennzeichnet, daß ein Anschluß (32) in der ersten Reihe, mit dem Fügeabschnitt (34) gegenüber dem Zwischenabschnitt (40) in der ersten Richtung versetzt, identisch zu einem Anschluß (32) in der zweiten Reihe ist, bei dem der Fügeabschnitt (34) gegenüber dem Zwischenabschnitt (40) in der zweiten Richtung versetzt ist, wodurch der Anschluß (32) in der zweiten Reihe um 180° relativ zu dem Anschluß (32) in der ersten Reihe orientiert ist.
  7. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 5, dadurch gekennzeichnet, daß die Isolationsverlagerungsschlitze (78) der Anschlüsse (32) in der ersten Reihe gegenüber der Achse (46) des Fügeabschnitts (34) der Anschlüsse (32) parallel zu der ersten Reihe in einer ersten seitlichen Richtung versetzt sind, und daß die Isolationsverlagerungsschlitze (78) der Anschlüsse (32) in der zweiten Reihe gegenüber der Achse (46) des Fügeabschnitts (34) der Anschlüsse (32) parallel zu der zweiten Reihe in einer zweiten seitlichen Richtung versetzt sind, wobei die zweite seitliche Richtung entgegengesetzt zu der ersten seitlichen Richtung ist.
  8. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 1, dadurch gekennzeichnet, daß der Zwischenabschnitt (40) ferner eine nach hinten weisende Schulter (65) aufweist, auf die eine Einsetzkraft ausgeübt werden kann, um den Anschluß in den Durchgang einzusetzen.
  9. Verbinder (20) zum Anschließen an ein Flachkabel (94) nach Anspruch 1, dadurch gekennzeichnet, daß der Zwischenabschnitt (40) ferner eine nach vorn weisende Anschlagschulter (58) zum Angreifen an einer Anschlagoberfläche in dem Durchgang nach dem Einsetzen darin aufweist.
EP90903289A 1989-01-30 1989-12-14 Flachkabelverbinder hoher dichte mit kontakten mit zweifachem übergang Expired - Lifetime EP0408736B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/303,798 US4902243A (en) 1989-01-30 1989-01-30 High density ribbon cable connector and dual transition contact therefor
US303798 1989-01-30
PCT/US1989/005587 WO1990009044A1 (en) 1989-01-30 1989-12-14 High density ribbon cable connector and dual transition contact therefor

Publications (2)

Publication Number Publication Date
EP0408736A1 EP0408736A1 (de) 1991-01-23
EP0408736B1 true EP0408736B1 (de) 1995-03-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90903289A Expired - Lifetime EP0408736B1 (de) 1989-01-30 1989-12-14 Flachkabelverbinder hoher dichte mit kontakten mit zweifachem übergang

Country Status (6)

Country Link
US (1) US4902243A (de)
EP (1) EP0408736B1 (de)
JP (1) JP2961205B2 (de)
CA (1) CA1310085C (de)
DE (1) DE68921617T2 (de)
WO (1) WO1990009044A1 (de)

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US10541482B2 (en) 2015-07-07 2020-01-21 Amphenol Fci Asia Pte. Ltd. Electrical connector with cavity between terminals
US10243304B2 (en) 2016-08-23 2019-03-26 Amphenol Corporation Connector configurable for high performance
CN108346869B (zh) * 2017-01-24 2020-07-03 泰科电子(上海)有限公司 线缆连接器
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WO2021154702A1 (en) 2020-01-27 2021-08-05 Fci Usa Llc High speed connector
US11469554B2 (en) 2020-01-27 2022-10-11 Fci Usa Llc High speed, high density direct mate orthogonal connector
CN215816516U (zh) 2020-09-22 2022-02-11 安费诺商用电子产品(成都)有限公司 电连接器
CN213636403U (zh) 2020-09-25 2021-07-06 安费诺商用电子产品(成都)有限公司 电连接器

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Also Published As

Publication number Publication date
JP2961205B2 (ja) 1999-10-12
JPH03503698A (ja) 1991-08-15
DE68921617D1 (de) 1995-04-13
CA1310085C (en) 1992-11-10
DE68921617T2 (de) 1995-11-09
US4902243A (en) 1990-02-20
WO1990009044A1 (en) 1990-08-09
EP0408736A1 (de) 1991-01-23

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